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what command to use to standardize my data to mean = 0, and SD=1. the data I want to standardize/centroid is in column format. So I'm thinking of using: col.mean.stdised=apply(data.df,2,function(z){z-mean(z)}) but, what command should I use to put my SD =1? Thanks! -- View this message in context: http://r.789695.n4.nabble.com/what-command-to-use-for-standization-tp2236074p2236074.html Sent from the R help mailing list archive at Nabble.com.